Benchmark: lodash partition vs forEach with array spread iterator vs array push vs for each with concat vs two filters with 10000

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var tabl = Array.from({ length: 10000 }).map((value, i) => i)

Tests:

Lodash partition
let result = _.partition(tabl, v => v%2)
forEach with push
let a = [], b = []; let result = tabl.forEach(item => {if (item%2) {a.push(item)} else {b.push(item)}})
forEach with spread
let a = [], b = []; let result = tabl.forEach(item => {if (item%2) {a = [...a, item]} else {b = [...b, item]}})
forEach with concat
let a = [], b = []; let result = tabl.forEach(item => {if (item%2) {a = a.concat(item)} else {b = b.concat(item)}})
two filters
a = tabl.filter(item => item % 2) b = tabl.filter(item => !item % 2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash partition
forEach with push
forEach with spread
forEach with concat
two filters

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 12; M2102J20SG) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.192 Mobile Safari/537.36 OPR/74.1.3922.71199

Browser/OS: Opera Mobile 74 on Android

View result in a separate tab

Test name	Executions per second
Lodash partition	8334.3 Ops/sec
forEach with push	11641.5 Ops/sec
forEach with spread	19.7 Ops/sec
forEach with concat	4.2 Ops/sec
two filters	6952.4 Ops/sec

lodash partition vs forEach with array spread iterator vs array push vs for each with concat vs two filters with 10000 (version: 0)

Comparing performance of: Lodash partition vs forEach with push vs forEach with spread vs forEach with concat vs two filters

Created: one year ago by: Guest

Jump to the latest result

Lodash partition

forEach with push

forEach with spread

forEach with concat

two filters

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A